WeChat is a giant social media service with 938 million monthly active users. WeChat Pay has 600 million active users.

WeChat will come up against Alipay, the payments service run by Alibaba affiliate Ant Financial, which launched in Europe in 2015.

WeChat is a giant social media service that has 938 million monthly active users. Tencent has partnered with German payments firm Wirecard to allow European retailers to accept WeChat pay as a payment option.

The move is specifically aimed at Chinese tourists coming to Europe and is not necessarily a challenger to the likes of Apple Pay and Samsung Pay, both of which operate in parts of Europe. Chinese consumers are very used to using mobile payment services like WeChat Pay for everything from ride-hailing services to shopping. When they go abroad, they want these same services.

Chinese tourists were the highest spending in 2016, splashing a total $261 billion abroad, according to the United Nations World Tourism Organization. It's a lucrative market, one that Tencent is hoping to capture.

But it will have to catch up with Alipay which launched in Europe 2015 and has since expanded to other destinations like South Africa. Tencent said that in China it has 600 million active users of WeChat Pay. Meanwhile, Alipay recently released numbers that put its active user number at 450 million people.

"Right now the problem is many Chinese travelers don't have the right payment instruments. Shopping is a substantial part of the shopping journey. For every retailer targeting Chinese customers in the segment of luxury, of travel, of entertainment, this is a must-have payment option," Markus Eichinger, executive vice president of global product strategy at Wirecard, told CNBC in an interview ahead of the launch.

Wirecard was also the company that helped Alipay launch in Europe in 2015. It acts as an acquirer, essentially bundling all the transactions for a retailer and processing them.

Chinese toursts can open their WeChat wallet feature, show the barcode on their smartphone to the retailer, and the shop assistant will scan the code to activate the payment process.

Wirecard said that the solution will be ready to go live from November.